2024 Vol. 45, No. 3

Separating and Extracting of Vanadium and Titanium
2023 China titanium industry development report
An Zhongsheng, Chen Yan, Zhao Wei, Huai Jin
2024, 45(3): 1-8. doi: 10.7513/j.issn.1004-7638.2024.03.001
Abstract(2197) HTML (261) PDF(438)
Abstract:
Based on the data of production capacity, output, application and import and export of titanium products such as titanium concentrate, titanium sponge, titanium ingot and titanium material in China in 2023, the overall situation of China’s titanium industry was analyzed, and the corresponding sugges...
Recovery and regeneration of waste electrolyte from all-vanadium redox flow battery
Peng Haiquan, Xu Jiabin, You Runchen, Zhao Lina, Hu Xianlong
2024, 45(3): 9-15. doi: 10.7513/j.issn.1004-7638.2024.03.002
Abstract(366) HTML (78) PDF(50)
Abstract:
Vanadium flow battery is an electrochemical energy storage device. As energy is stored in the electrolyte, power and capacity are independent of each other, which has outstanding advantages in the field of large-scale energy storage. However, the recovery and treatment of the used electrolyte of the...
Study on leaching behavior of vanadium in acid leaching process of calcium and manganese vanadate system
Li Feifei, Wen Jing, Jiang Tao, Li Changqing, Xiao Hao
2024, 45(3): 16-24. doi: 10.7513/j.issn.1004-7638.2024.03.003
Abstract(159) HTML (67) PDF(18)
Abstract:
Calcium vanadate and manganese vanadate are important roasting products in the calcification roasting process of vanadium slag, and their dissolution and leaching behavior in sulfuric acid has an important effect on the vanadium yield in the vanadium extraction process. In this paper, the effects of...
Optimization of VAR melting process of TB9 titanium alloy based on numerical simulation
Luo Kun, Geng Naitao, You Yanjun, Peng Li, Wang Ying, Dong Entao
2024, 45(3): 25-32. doi: 10.7513/j.issn.1004-7638.2024.03.004
Abstract(244) HTML (45) PDF(27)
Abstract:
Metallurgical defects such as segregation and inclusion will occur when vacuum arc remelting (VAR) is used to melt TB9 titanium alloy. MeltFlow-VAR simulation software was used to simulate the primary melting process of TB9 titanium alloy VAR, and the influence of melting current and arc stabilizati...
Analysis of factors affecting the gloss of titanium dioxide in coatings
Zou Yong, Li Gang, Li Li, Ke Lianghui, Chen Xinhong
2024, 45(3): 33-38. doi: 10.7513/j.issn.1004-7638.2024.03.005
Abstract(199) HTML (49) PDF(11)
Abstract:
Aiming at the differences in the application performance of titanium dioxide at home and abroad, the morphology of different titanium dioxide products including GT1, GT2 and MT were analyzed by SEM, TEM, EDS, XPS and FTIR. The influencing factors of the glossiness of titanium dioxide in coatings wer...
Comparative study of dispersion performance of the zinc and aluminum salt treated rutile titanium dioxides
Liu Chan, Yin Hongyao, Yang Fang, Lu Ruifang
2024, 45(3): 39-45. doi: 10.7513/j.issn.1004-7638.2024.03.006
Abstract(144) HTML (34) PDF(7)
Abstract:
In this paper, the effects of TiO2 concentration, pH of the dispersion system and surface adsorbed chemical ingredients on the zeta potential of the zinc and aluminum salt treated rutile titanium dioxides produced by the manufacturer were systematically studied. The differences of the dispersion sta...
Application of Vanadium and Titanium
Optimization of the investment casting process and defect control for variable cross−section components of TC4 alloy
He Tongzheng, Chen Yuyong, Wu Jingxi, Luo Guojun, Shen Xuanjin, Tang Liying
2024, 45(3): 46-54. doi: 10.7513/j.issn.1004-7638.2024.03.007
Abstract(225) HTML (68) PDF(21)
Abstract:
In this study, the centrifugal investment casting process was optimized using ProCAST software based on an orthogonal experiment for TC4 alloy variable cross−section components. Simultaneously, the mold filling and solidification behaviors of the castings were investigated in detail, and the quality...
Effect of post heat treatment on the microstructure and properties of as-annealed TC4 ELI alloy
Yin Yanchao, Sun Zhijie, Xue Da, Suo Yongyong, Liu Haibin
2024, 45(3): 55-64. doi: 10.7513/j.issn.1004-7638.2024.03.008
Abstract(218) HTML (82) PDF(16)
Abstract:
The effects of post heat treatment on the microstructure and mechanical properties of annealed TC4 ELI alloy investigated by optical microscopy (OM), transmission electron microscopy (TEM), scanning electron microscopy (SEM), tensile and Charpy impact test at room temperature. The results show that ...
Effect of SDBS addition on properties of bismuth vanadate yellow pigment powder
Yin Xianglu, Zeng Zehua, Zhang Dongbin, Dai Yu, Yuan Xinran, Liu Tianhao, Yang Yadong, Yong Lingling
2024, 45(3): 65-70, 85. doi: 10.7513/j.issn.1004-7638.2024.03.009
Abstract(127) HTML (33) PDF(10)
Abstract:
In this paper, sodium dodecylbenzene sulfonate (SDBS) was used as structure directing agent to prepare bismuth vanadate pigment nanopowder by liquid phase method.The influence of SDBS on the morphology, phase, and chromaticity value of bismuth vanadate was investigated.The results show that SDBS can...
Carbon coating, UV irradiation modification of lithium titanate and their electrochemical properties
Li Yunfeng, Wu Chuanbao, Wang Yunwei, Ran Siyu, Zheng Yuqian
2024, 45(3): 71-78. doi: 10.7513/j.issn.1004-7638.2024.03.010
Abstract(114) HTML (34) PDF(7)
Abstract:
Lithium titanate (Li4Ti5O12, abbreviated as LTO) has become an important anode material for lithium-ion batteries due to its structural "zero-strain" property. However, the low electronic conductivity of lithium titanate limits its high-rate performance. In this paper, a light-assisted sol-gel metho...
Study on preparation and photocatalytic performance of mint carbon dots/TiO2 composite photocatalyst
Zhang Ying, Ren Wang, Zheng Xingwen, Zhou Huimian, Qu Xiang, Li Minjiao
2024, 45(3): 79-85. doi: 10.7513/j.issn.1004-7638.2024.03.011
Abstract(231) HTML (73) PDF(11)
Abstract:
In this study, mint powder was employed as biological carbon source to prepare mint carbon dots (mint-CDs)/TiO2 composite photocatalyst by a one-step hydrothermal method. The structure, morphology, specific surface area and photogenerated charges separation characteristics were carefully investigate...
Study on microstructure and wear properties of TiAl alloy deposited by laser melting
Wang Haijiang, Liu Zhanqi, Liang Jianhui, Yin Guili, Zhu Xiaoou
2024, 45(3): 86-91. doi: 10.7513/j.issn.1004-7638.2024.03.012
Abstract(109) HTML (27) PDF(5)
Abstract:
One-layer, three-layer and five-layer Ti-48Al-2Cr-2Nb alloy samples were prepared on TC4 substrate by coaxial laser powder-feeding deposition manufacturing process. The microstructure, crack morphology, wear surface morphology and phase composition of the deposited layer were analyzed by optical mic...
Resources Environment and Energy Saving
Safety risk and prospect analysis of titanium gypsum on soil utilization
Yun Yi, Wang Gang, Su Haifeng
2024, 45(3): 92-100. doi: 10.7513/j.issn.1004-7638.2024.03.013
Abstract(279) HTML (107) PDF(21)
Abstract:
Up to now, the resource utilization rate of titanium gypsum is less than 10%, and there is no application field that can be consumed on a large scale, and soilization may be an important direction. In this paper, titanium gypsum was proposed as a soil resource, and the safety problems faced by it as...
Distribution behavior of chromium and sulfur elements during co-treatment of vanadium extraction tailings and red mud
Wang Chunhui, Yu Jian, Feng Xiaoming, Zhang Yanling, Zhang Shuai
2024, 45(3): 101-106. doi: 10.7513/j.issn.1004-7638.2024.03.014
Abstract(123) HTML (26) PDF(9)
Abstract:
The process of blast furnace iron-oxygen top blowing converter blowing vanadium extraction-vanadium slag followed by sodium roasting-water leaching and vanadium extraction will form vanadium tailings containing 30%~40% Cr2O3, forming an annual accumulation of millions of tons of solid waste. In this...
Optimization of reduction leaching conditions for pyrite cinder using titanium dioxide waste acid by response surface methodology
Wang Qinghong, Tian Congxue, Wu Xiukun
2024, 45(3): 107-113. doi: 10.7513/j.issn.1004-7638.2024.03.015
Abstract(92) HTML (25) PDF(7)
Abstract:
The reduction leaching conditions for pyrite cinder leaching by titanium dioxide waste acid were investigated and optimized, using the response surface methodology designed by Box-Behnken method, and the iron powder dosage, reduction time, and leaching temperature were selected as the three variable...
Enhanced dispersion-magnetic separation tests for micro-fine titanomagnetite in Panxi area
Liu Caipeng, Wang Weiqing, Sun Jinrui, Xiong Huiming, Liu Liu
2024, 45(3): 114-120. doi: 10.7513/j.issn.1004-7638.2024.03.016
Abstract(105) HTML (24) PDF(9)
Abstract:
Due to the heterogeneous coagulation of fine-grained gangue minerals and titanomagnetite in the mixed rough concentrate of a fine-grained titanomagnetite in Panxi area, the iron extraction and impurity reduction index of conventional low-intensity magnetic separation is poor. The enhanced dispersion...
Ferrous Metallurgy and Materials
Simulation of operation inner profile of blast furnace with smelting vanadium-titanium magnetite
Dong Xiaosen, Rao Jiating, Zheng Kui
2024, 45(3): 121-130, 154. doi: 10.7513/j.issn.1004-7638.2024.03.017
Abstract(172) HTML (46) PDF(16)
Abstract:
Based on the design parameters and production conditions of a vanadium-titanium magnetite smelting blast furnace, a numerical model of the vanadium-titanium blast furnace operation inner model was established through a MATLAB calculation software in order to study the slag adhering situation of the ...
Research progress and development direction of steel grade transition
Song Sicheng, Sun Yanhui, Wu Huajie, An Hanghang
2024, 45(3): 131-140. doi: 10.7513/j.issn.1004-7638.2024.03.018
Abstract(125) HTML (59) PDF(9)
Abstract:
The demand for high value-added steel grades is relatively low, and more than one steel grade needs to be produced per casting sequence. Industrial tests of the steel grade transition carried out by domestic enterprises is sorted out in this paper. The application of water model experiment and numer...
High-temperature heat capacity and metallurgical performance of Ca3TiFe2O8
Zeng Junjie, Li Gang, Chen Lian, Xue Yuxiao, Lü Xuewei
2024, 45(3): 141-146. doi: 10.7513/j.issn.1004-7638.2024.03.019
Abstract(103) HTML (25) PDF(5)
Abstract:
The quality of the sintered iron ores is dominated by their bonding phases properties. The calcium ferrite system containing TiO2 was investigated to promote the efficient utilization of vanadium and titanium magnetite resources in the field of sintering. In this paper, Ca3TiFe2O8 (CFT) was found in...
Effect of Mn content on microstructure and mechanical properties of medium carbon low Si bainitic steel
Yu Jinrui, Yu Xinhong, Zhang Yu, Feng Yisheng, Zhao Ertuan
2024, 45(3): 147-154. doi: 10.7513/j.issn.1004-7638.2024.03.020
Abstract(151) HTML (39) PDF(9)
Abstract:
Four medium-carbon low-Si bainitic steels with different Mn contents(0.76%, 1.29%, 1.53%, 1.85%) were designed and smelted. The effect of manganese content on the microstructure and mechanical properties of the test steel was studied by OM, SEM, XRD and tensile and impact tests. The results show tha...
Formation and evolution of non-metallic inclusions in 20CrMnTiH gear steel during LF-RH-CC process
Wang Zhangyin, Chen Liang, Chen Xiong, Li Pingfan
2024, 45(3): 155-161. doi: 10.7513/j.issn.1004-7638.2024.03.021
Abstract(94) HTML (27) PDF(4)
Abstract:
The formation and evolution of non-metallic inclusions in 20CrMnTiH gear steel during LF-RH-CC process were analyzed by industrial trials, and the transformation trend of non-metallic inclusions during reoxidation and cooling solidification in 20CrMnTiH gear steel was analyzed by thermodynamic calcu...
Research on the influence of various process parameters on the properties of 304 stainless steel prototypes by electron beam free form fabrication
Huang Xingguang, Sun Baofu
2024, 45(3): 162-168. doi: 10.7513/j.issn.1004-7638.2024.03.022
Abstract(121) HTML (27) PDF(5)
Abstract:
304 stainless steel wire with a diameter of 1 mm was used as the material to prepare 304 stainless steel samples using electron beam fusion deposition technology (EBF3) for mechanical properties and microstructure analysis. Nine sets of experimental were designed for single factor experiments, where...
Effect of vanadium microalloying on hydrogen embrittlement susceptibility of medium Mn based hot stamping steel
Liu Hao, Wang Zhen, Zhang Shiqi, Ge Rui, Jia Juan, Liu Jing
2024, 45(3): 169-175. doi: 10.7513/j.issn.1004-7638.2024.03.023
Abstract(124) HTML (24) PDF(11)
Abstract:
The effect of adding 0.12% vanadium on hydrogen embrittlement susceptibility of medium Mn based hot stamping steel was studied by using slow strain rate tensile, hydrogen permeability and hydrogen microprinting experiments, combined with SEM, TEM, and EBSD analysis. The results show that vanadium mi...
Research on preparation of Fe-5%Si porous material and its permeability
Ji Shuai, Yuan Jiale, Liu Zhongjun
2024, 45(3): 176-181, 187. doi: 10.7513/j.issn.1004-7638.2024.03.024
Abstract(113) HTML (29) PDF(7)
Abstract:
Three groups of the same Fe-5%Si mixed powder were sintered at high temperature at 1050 , 1100 ℃ and 1150 ℃, respectively, and held for 2 h. Metallographic (OM) and scanning (SEM) microstructure observation and XRD phase analysis were performed for each sample, and the gas permeability was tested by...
Study on the microstructures and properties of high speed laser welded joints of CP800 high strength steel
Jiang Tong, Wang Dafeng, Zou Shengguang, Zeng Haolin, Ma Bing, Chen Donggao
2024, 45(3): 182-187. doi: 10.7513/j.issn.1004-7638.2024.03.025
Abstract(121) HTML (26) PDF(10)
Abstract:
In order to further improve the laser welding speed and solve the problem of weld depression in the process of high speed welding, carried out high speed laser welding of CP800 high strength steel was carried out at 12 m/min, and the influence of laser incidence angle on weld forming was studied. Un...
Finite element analysis of multi-physics coupling for electromagnetic welding of aluminum/steel dissimilar metals
Wang Yan, Xiong Zhilin, Ning Zhaoyang, Chen Jinlan
2024, 45(3): 188-194. doi: 10.7513/j.issn.1004-7638.2024.03.026
Abstract(120) HTML (28) PDF(7)
Abstract:
The reaction of aluminum/steel dissimilar metals welded joints to form Fe-Al intermetallic compounds deteriorates joint performance and makes welding forming difficult. In this paper, ABAQUS finite element software was used to simulate the electromagnetic-thermal-structure coupling process of dissim...
Effect of Mg on carbides in 21-4N valve steel
Ji Dengping, Zhu Haoran, Liu Beibei, Sun Han, Xu Xiangyu, Fu Jianxun
2024, 45(3): 195-199. doi: 10.7513/j.issn.1004-7638.2024.03.027
Abstract(146) HTML (39) PDF(10)
Abstract:
In order to explore the influence of different magnesium content on primary carbides in 21-4N valve steel, 21-4N valve steel with different magnesium content was smelted in a laboratory high temperature resistance furnace, and the research was carried out by use of Zeiss metallographic microscope, s...
Physical Testing and Chemical Analysis
Determination of rare earth elements in vanadium-titanium magnetite by ICP-MS
Liu Shujun, Lei Yong, Zhao Chaohui, Yi Jianchun, Wang Hongbin
2024, 45(3): 200-204. doi: 10.7513/j.issn.1004-7638.2024.03.028
Abstract(163) HTML (66) PDF(15)
Abstract:
Accurate and rapid determination of rare earth elements in vanadium titanium magnetite plays an important role in the efficient utilization of vanadium titanium magnetite. In view of the lack of analysis methods for rare earth elements in vanadium titanium magnetite at home and abroad, 5 representat...